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Range of ( x^2 + ax + b ) / ( x^2 + 2x + 3 ) is [-5,4].Find ( a^2 + b^2 )

Range of ( x^2 + ax + b ) / ( x^2 + 2x + 3 ) is [-5,4].Find ( a^2 + b^2 )

Grade:11

1 Answers

jitender lakhanpal
62 Points
9 years ago

hi

PFA the first part of solution 

and after that equate the discriminants less than 0 for both inequalities

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